We examine the argument hat predominantly female occupations attract women because they are relatively easy to combine with family responsibilities. Some traditionally female occupations offer relatively low penalties for labor force withdrawal, but other 'female" occupations reduce the costs of employment to mothers by facilitating the combination of worker and mother roles. We test the hypothesis that a woman's response to the character-istics of her occupation and to other factors depends on her preference for employment vs. homemaking over the long run. Using data from the National Longitudinal Survey of Youth, the analysis focuses on the periodfrom the year prior to thefirst birth through the two years following the birt...